Smallville S10x14 Masquerade “Chloe and Oliver are mistaken for FBI agents investigating Desaad’s recent string of murders and the pair are kidnapped by Desaad’s minions. Desaad tries to infect Chloe with the darkness. Meanwhile, Lois tells Clark he needs to be more careful with his identity and suggests a disguise.”

By the way, Actor Michael Rosenbaum will reprise his role as Lex Luthor in the finale of Smallville! :)